配电网规划的综合评价指标体系与方法

针对目前城市配电网规划缺乏量化评价手段的问题，研究了配电网规划的综合评价指标体系及评价方法。提出了适应配电网规划特点的综合评价指标体系;给出了电网规划评价的方法和步骤，包括评价指标设置和规划评价2项;选用上海某小区10 kV配电网规划作为案例，应用该方法对该小区的现状电网及2个规划方案分别进行了评价。所提出的指标体系包含“抗大面积停电能力”、“高中压网供电能力匹配度”、“电网扩展裕度”等多项电网规划评价的新指标，突出了电网规划的适应性、协调性等特点，除可适用于规划电网与现状电网的比较外，还适用于规划多方案评价。实际算例表明，所提出的方法能够全面抓住影响电网规划特征的要素，量化描述配电网规划的优劣，并引导电网规划的方向。

A Hierarchical Performance Assessment Method on the Distribution Network Planning

Given the lack of a quantitative evaluation method,the paper presents a hierarchically structured method on the evaluation of distribution network planning according to the network characteristics.The evaluation method and implementation steps are proposed,including the performance indices and the planning evaluation.The current network and two planning alternatives of a district in Shanghai,China are evaluated using this method.The method includes a few new performance indices such as capabilities of against large area blackouts,matching degrees of high and medium voltage network power supply,margins of network expansion,etc,which reflect the adaptability and coordination of planning alternatives.The method can not only be used to compare a planned network against existing one,but also to evaluate various planning schemes.Case studies indicate that the method can take into account of the key elements quantitatively,and provide guidelines in the distribution network planning.